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================================================================== BUG: KCSAN: data-race in __break_lease / __locks_wake_up_blocks write to 0xffff8881228c1478 of 8 bytes by task 15694 on cpu 0: __locks_delete_block fs/locks.c:728 [inline] __locks_wake_up_blocks+0x195/0x230 fs/locks.c:738 locks_delete_block+0x7c/0x230 fs/locks.c:773 __break_lease+0x492/0xc10 fs/locks.c:1660 break_lease include/linux/fs.h:2436 [inline] break_lease include/linux/fs.h:2426 [inline] vfs_truncate+0x23c/0x400 fs/open.c:102 do_sys_truncate.part.0+0xe1/0x100 fs/open.c:133 do_sys_truncate fs/open.c:127 [inline] __do_sys_truncate fs/open.c:145 [inline] __se_sys_truncate fs/open.c:143 [inline] __x64_sys_truncate+0x53/0x80 fs/open.c:143 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8881228c1478 of 8 bytes by task 15701 on cpu 1: __break_lease+0x846/0xc10 fs/locks.c:1654 break_lease include/linux/fs.h:2436 [inline] break_lease include/linux/fs.h:2426 [inline] vfs_truncate+0x23c/0x400 fs/open.c:102 do_sys_truncate.part.0+0xe1/0x100 fs/open.c:133 do_sys_truncate fs/open.c:127 [inline] __do_sys_truncate fs/open.c:145 [inline] __se_sys_truncate fs/open.c:143 [inline] __x64_sys_truncate+0x53/0x80 fs/open.c:143 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 15701 Comm: syz-executor.2 Not tainted 5.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/02/02 06:09 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 2274ad39 | .config | console log | report | ci2-upstream-kcsan-gce |